#include "chararray.h"
#include <iostream>
#include <sstream>
#include <string>
#include <memory.h>

using namespace std;
using namespace opsrc::stdf;

CharArray::CharArray():buf(NULL), size(0) {
}

CharArray::CharArray(char* buffer, int bufsize) {
	buf = new char[bufsize];
	size = bufsize;
	::memcpy(buf, buffer, bufsize);

}

CharArray::CharArray(const CharArray& rhs) {
	size = rhs.getSize();
	buf = new char[size];
	::memcpy(buf, rhs.getBuffer(), size);
}

CharArray::~CharArray() {
	if (size>0 && buf != NULL )
	  delete buf;
	  
	buf = NULL;
}

CharArray& CharArray::operator = (const CharArray& rhs ) {
	
	// check for self assignment
	if (this == &rhs )
	    return *this;
	
	// delete existing data and copy contents
	if (size>0) delete buf;
	
	size = rhs.getSize();
	buf = new char[size];
	::memcpy(buf, rhs.getBuffer(), size);   
	
	return *this;  

}

bool CharArray::operator ==  (const CharArray& rhs ) const {
	if (this == &rhs ) 
	   return true;
	   
	// compare length
	if ( size != rhs.getSize() ) return false;
	
	// compare char, size equal that is
	char* rhsbuf = rhs.getBuffer();
	for ( int i=0; i<size; i++ ) {
		if (*(buf+i) != *(rhsbuf+i) )
		   return false;
	}
	
	return true;	
	   
}


bool CharArray::operator != (const CharArray& rhs) const {
	return this->operator == (rhs);
	
}
	
bool CharArray::operator < (const CharArray& cp ) const {

	return true;
}


char* CharArray::getBuffer() const {
	return buf;	
}


int CharArray::getSize() const {
	return size;	
}

string CharArray::toHex() const {
    string HEX[] = {
        "00","01","02","03","04","05","06","07","08","09","0A","0B","0C","0D","0E","0F",
        "10","11","12","13","14","15","16","17","18","19","1A","1B","1C","1D","1E","1F",
        "20","21","22","23","24","25","26","27","28","29","2A","2B","2C","2D","2E","2F",
        "30","31","32","33","34","35","36","37","38","39","3A","3B","3C","3D","3E","3F",
        "40","41","42","43","44","45","46","47","48","49","4A","4B","4C","4D","4E","4F",
        "50","51","52","53","54","55","56","57","58","59","5A","5B","5C","5D","5E","5F",
        "60","61","62","63","64","65","66","67","68","69","6A","6B","6C","6D","6E","6F",
        "70","71","72","73","74","75","76","77","78","79","7A","7B","7C","7D","7E","7F",
        "80","81","82","83","84","85","86","87","88","89","8A","8B","8C","8D","8E","8F",
        "90","91","92","93","94","95","96","97","98","99","9A","9B","9C","9D","9E","9F",
        "A0","A1","A2","A3","A4","A5","A6","A7","A8","A9","AA","AB","AC","AD","AE","AF",
        "B0","B1","B2","B3","B4","B5","B6","B7","B8","B9","BA","BB","BC","BD","BE","BF",
        "C0","C1","C2","C3","C4","C5","C6","C7","C8","C9","CA","CB","CC","CD","CE","CF",
        "D0","D1","D2","D3","D4","D5","D6","D7","D8","D9","DA","DB","DC","DD","DE","DF",
        "E0","E1","E2","E3","E4","E5","E6","E7","E8","E9","EA","EB","EC","ED","EE","EF",
        "F0","F1","F2","F3","F4","F5","F6","F7","F8","F9","FA","FB","FC","FD","FE","FF"
    };
    stringstream ss;
    ss << size << ".";
    for (int i = 0; i < size; i++) {
        int j = static_cast<int>(buf[i]);
        ss << HEX[j];
    }
    return ss.str();
}
